Question

错误：

No suitable driver found for jdbc:mysql://localhost:3306
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)

这是我的代码。

public Connection getConnection() throws SQLException {
        Connection conn;
        Properties connectionProps = new Properties();
        connectionProps.put("user", "root");
        connectionProps.put("password", "pass");
        conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/" , connectionProps);
        System.out.println("Connected to database");
        return conn;

    }

Answer 1

你输入了吗？ import java.sql.*;尝试放入课堂顶部。同时将此Class.forName("com.mysql.jdbc.Driver");放在DriverManager.getconnection之前，以便识别驱动程序。

Answer 2

您需要在获得连接之前注册您的驱动程序（如果它已经注册，则不会执行任何操作）：

public Connection getConnection() throws SQLException {
        String myDriver = "com.mysql.jdbc.Driver";
        String myUrl = "jdbc:mysql://localhost:3306/";
        Class.forName(myDriver);
        Connection conn;
        Properties connectionProps = new Properties();
        connectionProps.put("user", "root");
        connectionProps.put("password", "pass");
        conn = DriverManager.getConnection(myUrl , connectionProps);
        System.out.println("Connected to database");
        return conn;
}

与MySQL连接器建立连接时出错

2 个答案: